(19)
(11) EP 4 025 560 A1

(12)

(43) Date of publication:
13.07.2022 Bulletin 2022/28

(21) Application number: 20860716.8

(22) Date of filing: 04.09.2020
(51) International Patent Classification (IPC): 
C07C 277/08(2006.01)
(52) Cooperative Patent Classification (CPC):
C07C 277/08
 
C-Sets:
C07C 277/08, C07C 279/26;
(86) International application number:
PCT/IN2020/050775
(87) International publication number:
WO 2021/044445 (11.03.2021 Gazette 2021/10)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 06.09.2019 IN 201911035946

(71) Applicant: Council of Scientific and Industrial Research
New Delhi 110001 (IN)

(72) Inventors:
  • KULKARNI, Amol Arvind
    Pune 411008 (IN)
  • SHARMA, Brijesh
    Pune 411008 (IN)

(74) Representative: Lavoix 
2, place d'Estienne d'Orves
75441 Paris Cedex 09
75441 Paris Cedex 09 (FR)

   


(54) SOLVENT FREE CONTINUOUS PROCESS FOR THE SYNTHESIS OF METFORMIN HYROCHLORIDE